English ⇄ Arabic Chinese Danish Dutch English Finnish French German Greek Italian Japanese Portuguese Russian Serbian Latin Spanish Swedish Ukrainian

back to back ['bæktə'bæk]
abbr.	b to b
back-to-back
abbr., amer.	consecutive (coming one after the other in time Val_Ships)
amer.	consecutive (coming one after the other Val_Ships)

back: 2 phrases in 2 subjects

Optics branch of physics	1
Telecommunications	1